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Ductal Carcinoma in Situ: Quantitative Preoperative Breast MR Imaging Features Associated with Recurrence after Treatment.

Authors :
Luo J
Johnston BS
Kitsch AE
Hippe DS
Korde LA
Javid S
Lee JM
Peacock S
Lehman CD
Partridge SC
Rahbar H
Source :
Radiology [Radiology] 2017 Dec; Vol. 285 (3), pp. 788-797. Date of Electronic Publication: 2017 Sep 14.
Publication Year :
2017

Abstract

Purpose To investigate whether specific imaging features on breast magnetic resonance (MR) images are associated with ductal carcinoma in situ (DCIS) recurrence risk after definitive treatment. Materials and Methods Patients with DCIS who underwent preoperative dynamic contrast material-enhanced (DCE) MR imaging between 2004 and 2014 with ipsilateral recurrence more than 6 months after definitive surgical treatment were retrospectively identified. For each patient, a control subject with DCIS that did not recur was identified and matched on the basis of clinical, histopathologic, and treatment features known to affect recurrence risk. On DCE MR images, lesion characteristics (longest diameter, functional tumor volume [FTV], peak percentage enhancement [PE], peak signal enhancement ratio [SER], and washout fraction) and normal tissue features (background parenchymal enhancement [BPE] volume, mean BPE) were quantitatively measured. MR imaging features were compared between patients and control subjects by using the Wilcoxon signed-rank test, with adjustment for multiple comparisons. Results Of 415 subjects with DCIS who underwent preoperative MR imaging, 14 experienced recurrence and 11 had an identifiable matching control subject (final cohort, 11 patients and 11 control subjects). Median time to recurrence was 14 months, and median follow-up for control subjects was 102 months. When compared with matched control subjects, patients with DCIS recurrence exhibited significantly greater FTV (median, 9.3 cm <superscript>3</superscript> vs 1.3 cm <superscript>3</superscript> , P = .01), lesion peak SER (median, 1.7 vs 1.2; P = .03), and mean BPE (median, 58.3% vs 41.1%; P = .02). Conclusion Quantitative lesion and normal breast tissue characteristics at preoperative MR imaging in women with newly diagnosed DCIS show promise for association with breast cancer recurrence after treatment. <superscript>©</superscript> RSNA, 2017.

Details

Language :
English
ISSN :
1527-1315
Volume :
285
Issue :
3
Database :
MEDLINE
Journal :
Radiology
Publication Type :
Academic Journal
Accession number :
28914599
Full Text :
https://doi.org/10.1148/radiol.2017170587